球面调和光只有很低的频率。球面调和光不能产生锋利的照明过渡。它们也只会影响散射光照（对高光来说，球面调和光的频率太低了）。

SH lighting is very low frequency. You can't have sharp lighting transitions with SH lights. They are also only affecting the diffuse lighting (too low frequency for specular highlights).

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系统分析了带有非轴对称球锥过渡环壳的球面舱壁的结构组成、受力工况、强度与稳定性要求，用有限元方法对各参数进行了强度优化与稳定性优化。

In the article we analyse the structure compose, the endure force status, the request of strength and stability on the domed bulkhead with nonaxisymmetry sphere-conical transitional annulated shell.

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